Fastener for concrete sewer constructions.



I -1 W. C. FLANNERY= FASTENER FOR CONCRETE SEWER CONSTRUCTIONS.APPLICATION FILED SIEPT, 3. 1913.

1,155,411. Patented Oct. 5,1915.

STAT

WILLIAM C. FLANNERY, OF WASHINGTON, DISTRICT OF COLUMBIA.

FASTENER FOR CONCRETE SEWER CONSTRUCTIONS.

Application filed September 3, 1913.

To all wl o'm, it may concern:

Be it known that I, WVILLIAM C. Fm NERY, a citizen of the United States,residing at \Vashington, District of Columbia,

have invented certain new and useful Im-.

provements in Fasteners for Concrete Sewer Constructions, of which thefollowing is a specification.

This invention relates to fasteners for concrete sewer constructions,and particularly to fasteners for use in connecting and holdingassembled the inner wall forming elethe shell at an elevation above thebed of the sewer in order that the concrete may be filled in.

The object of the present invention is to provide a fastener wherebytiles composing the inner wall may be fastened to the supporting meansand to the frame rings or hands and also to each other in a ready andsecure manner, so as to hold the elements assembled while the concreteis being filled in, and to cooperate therewith to form an embeddedframing and reinforcement for the inner wall of maximum strength anddurability.

A further object of the invention is to provide a type of fastener whichmay also be employed for reinforcing and holding a starting tile andframe ring connected firmly with a supporting block or pedestal, and forholding all the other tiles in spaced relation to the frame rings, sothat the concrete will embed all portions of the structure in asubstantially monolithic manner.

The invention consists of the features of construction, combination andarrangement of parts, hereinafter fully described and claimed, referencebeing had to the accompanying drawing, in which Figure 1 is aperspective view of my improved fastener; Fig. 2 is a verticallongitudinal section on the line 22 of Fig. 4, showing a fastenerarranged to couple ad- Specification of Letters Patent.

Serial No. 788.017.

jacent tiles and connect the same with a frame ring; Fig. 3 is a view inend elevation of the parts shown in Fig. 2; Fig. 4 is a verticaltransverse section through a completcd sewer. taken on a lineC(llllCltltlll' Withcne of the frame rings or hands and showing theapplication of the invention; Fig. 5 is a perspective view, showing themode of fastening adjoining tiles together; Fig. (3 is a perspectiveview of a modified form of fastener.

In carrying my invention into practice I provide a fastener .1, formedof stout spring wire, said fastener comprising a Ushaped body portionformed of parallel side arms 2 united at one end by a transverseconnecting member 3. From the free ends of the arms 2, the portions ofthe wire are bent inwardly at an angle on converging lines toward thecross piece and between the arms 2 to provide portions 4, thence bentoutwardly at right angles or perpendicularly to the plane of theportions 2, and 4 to provide connecting members 5, and finally bentattheir extremities to produce hooks or engaging members (3, lying in thesame transverse plane which is parallel to the transverse plane of thearms 2. 'The arms 2 of the body portion are relatively movable andprovide spring clamping or engaging members, and the free ends of saidarms also coiiperate with the portions 4 to provide engaging members,and the hooks 6 further serve as engaging members, as hereinafter fullydescribed.

In the illustrated mode of application and use of the invention, I haveshown a sewer or like conduit composed of base or starting tiles"?supported by concrete pedestals 8, as shown in Fig. 4, frame rings orhands 9, tiles 10 similar in construction to the tiles 7 andcoiiperating therewith to form the inner wall or lining of the sewer,fasteners of the construction described whereby the parts are initiallyheld assembled. and an outer concrete wall ll. in which the aforesaidcomponent parts of the sewer to he concretcd are embedded. Each of theaforesaid tiles is segmentally curved in a transvers direction andprovided in its outer or rear surface with a (love-tailed groove 12-having undercut side walls 13, the said grooves 12 opening through theopposite ends of the tiles.

The body portion of each fastener is adapted to be inserted in thegroove 12 of a Patented Oct. 5, 1915.

tile, and the corresponding grooves of adjoining tiles, so that the arms2 underlie and interlock with the dove-tailed side walls 13. A fastenerof the character set forth is positioned in the groove midway the lengthof each starting tile 7 with the portions 5 and (3 projecting therefromand embedded in the concrete pedestal S, the concrete of the pedestalalso filling the groove in the tile and locking the parts together. Thehooks 6 are adapted to engage the frame rings or hands 9, and the baseportion of earhframe ring or band extends through and is embedded in itssupporting pedestal 8 and is engaged by the hooks of the fastener heldin the central portion of the starting tile 7, whereby the pedestal,starting tile and frame ring or band are all rigidly united.

In the construction of the sewer a continuous series of the pedestalsand starting tiles and frame rings supported thereby are arranged inproper spaced relation along the bed of the sewer trench, the ends ofadjacent starting tiles united by fasteners of the described type, theremaining tiles 10 then assembled and fastened to each other and to theframe rings or bands by other fasteners, thus producing a skeleton framework and inner wall, lining or shell, afterwhich the concrete formingthe outer wall 11 is filled in, and embeds and ties the aforementionedparts homogeneously together.

In uniting the adjacent ends of starting tiles, one end or the other ofthe body portion of a fastener is inserted into the groove at one end ofone starting tile, and the opposite or projecting end of said fastenerfitted into the groove of the adjacent end of the other starting tile,in which'manner all of the starting tiles may be mechanically fastened.In uniting the other tiles 10, the abutting ends of which aline with theframe rings 9, the body portions of the fasteners are interlocked withthe adjacent ends of tiles in like manner, and the books 6 of eachfastener are engaged with the adjacent frame ring or band, as clearlyillustratedin Figs. 2, 3 and 4. The tiles may therefore be readily andconveniently assembled and supported upon the frame rings to close thespaces between said rings and to produce the inner wall or lining, readyfor the filling in of the concrete forming the outer wall 11. Vhen thisconcrete is filled in, it enters the groovesin the tiles and embeds theframe rings and fasteners, and closes any crevices which may existbetween the tiles, thereby investing the pedestals, frame rings, tilesand fasteners so that when the concrete hardens amonolithic sewer orconduit having an inner wall of tiles which, may be of an acid proofcharacter, is produced. It will be observed that the connecting members5 project outwardly through the grooves in the tiles and dispose thehooks 6 at a definite distance from the body portion of the fasteners,whereby the grooved faces of the tiles are held spaced from the framerings, allowing the concrete to entirely fill the grooves and enibed andinterlock all surfaces together. It will be understood, of course, thatthe hooks 6 have a'spring action in gripping the rings 01' bands 9,which may be of any suitable cross sectional contour, so as to hold thetiles firmly against slipping in the process of assembling said tilesand mounting the'm on the frame rings.

It will accordingly be observed that my invention provides a fastenerwhich is designed and adapted for a plurality of fastening actions andfor holding parts of the character described firmly-and securelyassembled, and, while I have described the preferred mode of use of' thefastener, it

.will, of courseybe apparent that it may be employed for other analogouspurposes, and I therefore reserve the right to employthe fastener forany use for which it is'adapted.

The fastener employed may be modified to a considerable extent'withinthe scope of the invention. 'In Fig. 6 I have shown one form ofmodification which may be employed, the fastener 1 in this instancebeing also made of a single piece of wire and of the same generalconstruction as the fastener 1, except that the arms 9. are formed bythe ends of the wire, while the cross piece 3 connects the hooks 6 andthe arms 4' extend parallel with the arms 2.

Having thus described my invention, what I claim is 1. A fastenercomprising duplicate parallel members, each consisting of an engagingarm having opposite engaging ends, an extension from one of the engagingends of the arm projecting toward the other engag ing end of the arm,said extension having a portion bent perpendicularly to the plane of thearm and extension, a fastening element carried by said angularly bentportion of the extension, and a connection between said duplicateparallel members.

2. A fastener comprising duplicate'parallel members, each consisting ofan 'engaging arm'having opposite engaging ends, an extension from one ofthe engaging ends of the arm projecting inwardly toward the otherengaging end of the arm, said extension having its inner end portionbent in a plane perpendicularly to the plane of the arm and extension, ahook carried by the right angularly bent portion of the extension anddisposed in aplane parallel with the arm and extension, and a connectionbetween the said duplicate parallel members.

3. A fastener formed of spring Wire and comprising substantiallyparallel engaging arms, portions extending inwardly from one end of saidarms and having their end portions bent at right angles thereto,andhooks upon said right angularly bent portions disposed in spacedrelation to the arms.

4. A fastener formed of spring Wire and comprising a U-shaped bodyportion, arms extending inwardly on converging lines from the free endsof the arms of said body portion, extensions arranged at right angles tothe free ends of said converging arms, and engaging members carried bysaid extensions and arranged in spaced relation to the body portion..

5. A fastener formed of spring wire and comprising a U-shaped bodyportion, arms integral with the free ends of the arms of the bodyportion and extending inwardly therefrom toward the cross piece of thebody portion in converging relation, extensions projecting from the freeends of the converging arms at right angles to the plane of the bodyportion, and engaging hooks formed upon the free ends, of saidextensions. v

6. The combination with elements to be fastened, one of said elementshaving a dovetailed groove therein, of a spring wire fastener comprisinga U-shaped body portion to interlock with said dove-tailed groove ofsaid member and having hooks arranged in spaced relation to said bodyportion and adapted to engage the other member.

7. A fastener formed to provide resilient arms connected at one end,other arms iritegral with the free ends of the resilient "arms anddisposed between the same, and -engaging hooks carried by the free endsof the second named arms.

8. A fastener formed of spring wire formed to provide spaced membershaving opposite engaging ends, extensions integral withthe engagingmembers at one end, said extensions having portions bent at right anglesto said engaging members, and hooks carried by said right angularportions, said hooks being disposed in planes parallel to said membersand at a point in the length of the fastener between the engaging endsthereof.

9. The combination with elements to be fastened together, one of saidelements having a dovetailed groove therein, of a fastener embodyingresilient arms to interlock with said groove of one member, and providedwith hooks disposed in spaced relation to said arms to engage the othermember.

10. The combination with elements to be fastened together, one of saidelements having a dovetailed groove therein,-of a spring wire fastenercomprising a body formed of spaced resilient arms to interlock with saidgroove, portions projecting outwardly at right angles to the arms, andhooks carried by said portions to engage the other member.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM C. FLANNERY.

Witnesses:

M. MARKHAM FLANNERY, MARY P. FLANNERY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

